Method:2

Step 1: Download OxygenOS 3.5.8 Zip file and ADB and Fastboot Tool files. After then copy OxygenOS 3.5.8 Rom zip file into ADB and Fastboot Tool folder. After then press and hold shift key in the keyboard and right click in the extracted Fast boot tool folder and select “Open command window here”. See in this image.

Tips for OnePlus 2

After Install OnePlus 2 OxygenOS 3.5.8 Stock Rom, you can root your phone because root allows you to use a maximum of your phone without any restrictions. After root you will install custom apps, Rom and custom setting in your phone. But first read Root Advantage and Disadvantage by this article then follow this guide to root OnePlus 2.

I hope you like this Install OnePlus 2 OxygenOS 3.5.8 Stock Rom installation guide from which you will be able to easily Install OnePlus 2 OxygenOS 3.5.8 Stock Rom without any extra efforts. If feel any problem in this guide then please use comment box. Thanks to all.